Warner Bros. animation director Chuck Jones codified Nine Unbreakable Rules for the encounters between Wile E. Coyote and the Road Runner.
Rule 2: No outside force can harm the coyote—only his own ineptitude or the failure of the Acme products.
Rule 3: The Coyote could stop anytime—if he were not a fanatic. (Repeat: “a fanatic is one who redoubles his effort when he has forgotten his aim.” – George Santayana)
Rule 4: No dialogue ever, except “beep-beep.”
Rule 5: The Road Runner must stay on the road—otherwise logically, he would not be called a road runner.
Rule 6: All action must be confined to the natural environment of the two characters—the Southwest American desert.
Rule 7: All materials, tools, weapons, or mechanical conveniences must be obtained from the Acme corporation.
Rule 8: Whenever possible, make gravity the coyote’s greatest enemy.
Rule 9: The coyote is always more humiliated than harmed by his failures.
